Bug 2525394 (CVE-2026-80619) - CVE-2026-80619 kernel: apparmor: fix potential UAF in aa_replace_profiles
Summary: CVE-2026-80619 kernel: apparmor: fix potential UAF in aa_replace_profiles
Keywords:
Status: NEW
Alias: CVE-2026-80619
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-28 07:42 UTC by OSIDB Bzimport
Modified: 2026-09-03 15:41 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-08-28 07:42:46 UTC 
In the Linux kernel, the following vulnerability has been resolved:

apparmor: fix potential UAF in aa_replace_profiles

The function aa_replace_profiles was accessing udata->size after calling
aa_put_loaddata(udata), causing a potential UAF.

Fixed this by saving the size to a local variable before dropping the
reference.
Comment 1 gkamathe 2026-08-31 09:53:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026082836-CVE-2026-80619-935d@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.